Hello,
I'm a relative newbie to CGI::App, H::T and JavaScript. I'm working on a
project where I make heavy use of both CGI::App and H::T and limited use of
JavaScript (just event handlers.) Recently, I devised an idiom for passing
CGI parameters from one form to another form (without using any statefull
server mechanism) and I'd like to pass it along. Maybe this is useful and
you like it, maybe I've just devised something that everybody already knows
about, or maybe you do this another way you'd like to share. Or more
dreadfully, maybe there's a serious flaw in all this that I've overlooked!
I'd really appreciate knowing about that before I spread this like molasses
over my whole application.
Here are the key parts:
Some HTML template looks like this ...
<form id=new_data_form name=new_data_form method=post
action=myapp.cgi?rm=new_data>
<input type=hidden name="rm" value="add_record">
<input type=hidden name="param1">
<input type=hidden name="param2">
</form>
<form id=edit_data_form name=edit_data_form method=post
action=myapp.cgi?rm=edit_data>
<input type=hidden name="rm" value="edit_record">
<input type=hidden name="param1">
<input type=hidden name="param2">
</form>
<form id=instant_update_form name=instant_update_form method=post
action=myapp.cgi>
<input type=hidden name="rm" value="display">
<input type=hidden name="param1">
<input type=hidden name="param2">
<input type=hidden name="param3">
</form>
<form id=main_form name=main_form method=post action=myapp.cgi>
SOME HTML::Template structure here
with ...
<input type=text name="param3">
onClick="javascript:add_record()"
....
and so on
</form>
And the Javascript ....
function add_record()
{
var my_form;
var somevar;
my_form = this.document.forms['new_data_form'];
somevar = this.document.forms['main'].param3.value;
my_form.param1.value = "add";
my_form.param3.value = somevar; /* this is where it happens */
my_form.submit();
}
and so on for other main display form functions.
Then in the next form, on submit, pass all the cgi params back to
myapp.cgi?rm=display and finally process.
That's it. Hope you find it useful or care to share something even better.
Cheers,
Bill
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